Silicon carbide full-bridge inverter type generator inverter welding machine

Abstract

The utility model discloses a silicon carbide full-bridge inverter type generator inverter welding machine, and relates to the technical field of generator inverter welding machines. The LED lamp comprises a base part and an integrated circuit board arranged at the upper end in the base part, and further comprises a cooling fan arranged on one side of the base part, and input and output ports are formed in the other side of the base part in a staggered mode; the heat dissipation openings are evenly formed in the side, close to the input and output opening, of the base part, and the fixed outer cover is arranged at the upper end of the base part. According to the utility model, the upper end of the integrated circuit board is provided with a plurality of groups of electric control assemblies, so that the heating elements can be concentrated, the integrated circuit board can be protected by the base member and the fixed outer cover, the integrated circuit board is lighter, the size of the integrated circuit board is reduced, and then, the arranged cooling fan can quickly guide gas, so that the heat dissipation efficiency is improved. And the heat dissipation holes are also formed in the top of the fixed outer cover, so that gas can circulate from multiple directions.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of generator inverter welding machine, especially relates to a silicon carbide full bridge inverter generator inverter welding machine. BACKGROUND

[0002] The working process of the inverter welding equipment is that a relatively smooth direct current is obtained after three-phase or single-phase 50Hz power frequency alternating current is rectified and filtered, the direct current is changed into 15-100kHz alternating current by an inverter circuit composed of IGBT or field effect tube, the alternating current is reduced by a medium frequency main transformer, and then rectified and filtered to obtain a stable direct current output welding current, the control circuit of the inverter welding equipment is composed of a given circuit and a driving circuit, the machine cycle control is realized by processing the feedback of voltage and current signals, the control technology with pulse width modulation (PWM) as the core is adopted, so that the fast pulse width modulation constant current characteristic and excellent welding process effect are obtained.

[0003] In the mobile construction welding field, it is generally required that the inverter welding power supply is lighter and smaller under the condition of the same current power output, but the existing inverter generator inverter welding machine is relatively bulky, and the heat points are not concentrated, so that the inverter generator inverter welding machine is inconvenient to use. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned defects in the prior art, the utility model provides a silicon carbide full bridge inverter generator inverter welding machine, which can effectively solve the problems in the prior art.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] The utility model is a silicon carbide full bridge inverter generator inverter welding machine, which comprises a base member and an integrated circuit board arranged at the upper end of the base member, and further comprises:

[0007] The heat dissipation fan is arranged on one side of the base member, the base member has a "U" shaped structure, and input and output ports are staggered on the other side of the base member;

[0008] The heat dissipation port is arranged on one side of the base member close to the input and output ports;

[0009] The filter mechanism is arranged on one side of the base member and is used for filtering the gas entering the base member;

[0010] The fixed cover is arranged at the upper end of the base member, and the inner wall of the fixed cover is provided with a connecting sealing mechanism for connecting the base member and the fixed cover

[0011] Further, the filtering mechanism comprises a positioning chute and a filtering screen plate, the positioning chute is arranged on the inner side of the base member, the cross section of the positioning chute is in a trapezoidal structure, and the filtering screen plate is slidably connected to the inner side of the positioning chute and is in close contact with the inner wall of the heat dissipation opening.

[0012] Further, one side of the base member is connected with a connecting clamping plate, the other side of the base member is fixed with a fixed plate, and the connecting clamping plate, the base member and the fixed plate form a "Z" shaped structure.

[0013] Further, the connecting sealing mechanism comprises a horizontal plate member and a sealing gasket, the horizontal plate member is fixed on one side of the fixed outer cover, the sealing gasket is arranged on the inner wall of the fixed outer cover and the horizontal plate member and is in contact with the surfaces of the connecting clamping plate and the fixed plate respectively.

[0014] Further, the cross section of the fixed outer cover and the horizontal plate member is in an inverted "U" shaped structure, and the fixed outer cover is slidably connected to the upper end of the base member from top to bottom.

[0015] Further, the integrated circuit board comprises a silicon carbide inverter assembly, a rectifier heat sink component, a time delay relay, an input rectifier bridge and heat dissipation, a high frequency transformer, an output rectifier diode assembly and an auxiliary power transformer, and the silicon carbide inverter assembly, the rectifier heat sink component, the time delay relay, the input rectifier bridge and heat dissipation, the high frequency transformer, the output rectifier diode assembly and the auxiliary power transformer are evenly arranged on the upper end surface of the integrated circuit board.

[0016] The utility model has the following beneficial effects:

[0017] The utility model discloses a plurality of electric control assemblies are arranged on the upper end of the integrated circuit board, so that the heat generating elements are concentrated, the base member and the fixed outer cover can protect the integrated circuit board, the integrated circuit board is more portable as a whole, the volume is reduced, then the cooling fan can guide the gas quickly, the integrated circuit board can be cooled quickly, the top of the fixed outer cover is also provided with the heat dissipation hole, the gas can flow in multiple directions, and the filtering mechanism can filter the gas, so that the heat dissipation effect of the equipment is ensured, and dust and the like are prevented from entering the equipment, the connecting sealing mechanism can ensure the tightness of the connection between the fixed outer cover and the base member, the fixed outer cover and the base member can be quickly disassembled, so that subsequent maintenance and maintenance are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0019] Figure 1 It is the overhead view schematic diagram of the silicon carbide full bridge inverter type generator inverter welding machine of the utility model;

[0020] Figure 2 It is the guarantee schematic diagram of the silicon carbide full bridge inverter type generator inverter welding machine of the utility model;

[0021] Figure 3 It is the overhead view schematic diagram of the base piece of the utility model;

[0022] Figure 4 It is the left view schematic diagram of the base piece of the utility model.

[0023] In the drawings, the component list represented by each sign is as follows:

[0024] 1, base piece;2, heat dissipation fan;3, integrated circuit board;301, silicon carbide inverter assembly;302, rectifier radiator part;303, time delay relay;304, input rectifier bridge and heat dissipation;305, high-frequency transformer;306, output rectifier diode assembly;307, auxiliary power transformer;4, input and output port;5, heat dissipation port;6, positioning sliding groove;7, filter screen plate;8, connecting clamping plate;9, fixed plate;10, fixed cover;11, horizontal plate piece;12, sealing gasket. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model.

[0026] Please refer to Figures 1-4 As shown in the figure, the utility model is a kind of silicon carbide full bridge inverter type generator inverter welding machine, including base piece 1 and the integrated circuit board 3 of setting in the inside upper end of base piece 1, still including:

[0027] The heat dissipation fan 2 is arranged on one side of the base piece 1, and the base piece 1 is in a "U" shape structure, and the other side of the base piece 1 is staggered and provided with an input and output port 4; the integrated circuit board 3 includes a silicon carbide inverter assembly 301, a rectifier heat sink component 302, a delay relay 303, an input rectifier bridge and heat sink 304, a high-frequency transformer 305, an output rectifier diode assembly 306 and an auxiliary power transformer 307, and the silicon carbide inverter assembly 301, the rectifier heat sink component 302, the delay relay 303, the input rectifier bridge and the heat sink 304, the high-frequency transformer 305, the output rectifier diode assembly 306 and the auxiliary power transformer 307 are uniformly arranged on the upper end surface of the integrated circuit board 3, and a plurality of electric control assemblies are arranged on the upper end of the integrated circuit board 3, so that the heat generating elements are concentrated, and the base piece 1 and the fixed cover 10 can protect the integrated circuit board 3, so that the integrated circuit board 3 is more portable, the volume is reduced, and because the device uses a silicon carbide inverter assembly as an inverter core, the loss is very low due to the characteristics of the silicon carbide inverter assembly, and the heat generation is also relatively low, so that the volume of the heat sink is relatively small under the condition of the same power output, the volume and weight of the high-power output inverter welding machine power supply can be greatly reduced, and high power is achieved, which reduces the production cost and meets the market demand for portability;

[0028] The heat dissipation port 5 is arranged on one side of the base piece 1 close to the input and output port 4; the filter mechanism is arranged on one side of the base piece 1, and is used for filtering the gas entering the base piece 1; the filter mechanism includes a positioning sliding groove 6 and a filter screen plate 7, the positioning sliding groove 6 is arranged on the inner side of the base piece 1, and the cross section of the positioning sliding groove 6 is in a trapezoidal structure, the filter screen plate 7 is slidably connected to the inner side of the positioning sliding groove 6, and the filter screen plate 7 is in close contact with the inner wall of the heat dissipation port 5, the positioning sliding groove 6 can limit the position of the filter screen plate 7, and the filter screen plate 7 can be prevented from deviating and shaking, and the heat dissipation fan 2 can guide the gas, so that the gas can flow into the base piece 1, the top of the fixed cover 10 is also provided with a heat dissipation hole, so that the gas can flow in multiple directions, the filter screen plate 7 can also be arranged in the heat dissipation hole and connected by a magnet, and the surface of the filter screen plate 7 can filter the gas entering the base piece 1;

[0029] The fixed cover 10 is arranged at the upper end of the base member 1, and the inner wall of the fixed cover 10 is provided with a connecting sealing mechanism for connecting the base member 1 and the fixed cover 10; one side of the base member 1 is connected with a connecting clamping plate 8, and the other side of the base member 1 is fixed with a fixed plate 9, and the connecting clamping plate 8, the base member 1 and the fixed plate 9 form a "Z" shape structure, and the connecting clamping plate 8 and the fixed plate 9 can facilitate the subsequent connection of the fixed cover 10; the connecting sealing mechanism comprises a horizontal plate member 11 and a sealing gasket 12, the horizontal plate member 11 is fixed on one side of the fixed cover 10, and the sealing gasket 12 is arranged on the inner wall of the fixed cover 10 and the horizontal plate member 11 and respectively contacts the surface of the connecting clamping plate 8 and the fixed plate 9; the inner wall of the fixed cover 10 and the horizontal plate member 11 is provided with the sealing gasket 12, so that the fixed cover 10 can be closely attached to the base member 1, the cross section of the fixed cover 10 and the horizontal plate member 11 is a reverse "U" shape structure, and the fixed cover 10 is slidably connected at the upper end of the base member 1 from top to bottom, and the bolts can pass through the fixed cover 10 and the horizontal plate member 11 and are respectively connected with the connecting clamping plate 8 and the fixed plate 9, so that the position of the base member 1 and the fixed cover 10 can be limited, and the two can be disassembled for subsequent maintenance and maintenance.

[0030] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification of the technical solutions described in the above embodiments, equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement, all belong to the protection scope of the present application.

Claims

1. A silicon carbide full-bridge inverter welding machine of an inverter generator type, comprising a base member (1) and an integrated circuit board (3) disposed at an upper end inside the base member (1), characterized in that, Also include: The heat dissipation fan (2) is arranged in the base piece (1) one side, and the base piece (1) is " U ” shape structure, and the other side of the base piece (1) staggered and provided with input and output port (4); The heat dissipation port (5) is arranged in the base piece (1) one side near the input and output port (4) and is uniformly provided with the heat dissipation port (5); Filter mechanism, arranged in the base piece (1) one side, for filtering the gas entering the base piece (1); Fixed cover (10) is arranged in the upper end of the base piece (1), and the inner wall of the fixed cover (10) is provided with a connecting sealing mechanism for connecting the base piece (1) with the fixed cover (10).

2. A full-bridge inverter welder of claim 1, wherein, The filter mechanism includes positioning sliding groove (6) and filter screen plate (7), the positioning sliding groove (6) is arranged in the inner side of the base piece (1), and the cross section of the positioning sliding groove (6) is trapezoidal structure, the filter screen plate (7) is slidably connected in the inner side of the positioning sliding groove (6), and the filter screen plate (7) is in close contact with the inner wall of the heat dissipation port (5).

3. A full-bridge inverter welder of claim 1, wherein, The base piece (1) one side is connected with the connecting card plate (8), and the other side of the base piece (1) is fixed with the fixed plate (9), and the connecting card plate (8) and the base piece (1) and the fixed plate (9) form " Z ” shape structure.

4. A full-bridge inverter welder of claim 3, wherein, The connecting sealing mechanism includes horizontal plate (11) and sealing gasket (12), the horizontal plate (11) is fixed in one side of the fixed cover (10), the sealing gasket (12) is arranged in the inner wall of the fixed cover (10) and the horizontal plate (11), and respectively with the surface of the connecting card plate (8) and the fixed plate (9) contact.

5. A full-bridge inverter welder of claim 4, wherein, The cross section of the fixed cover (10) and the horizontal plate (11) is inverted " U ” shape structure, and the fixed cover (10) is slidably connected in the upper end of the base piece (1) from top to bottom.

6. A full-bridge inverter welder of claim 1, wherein, The integrated circuit board (3) includes silicon carbide inverter assembly (301), rectifier radiator component (302), delay relay (303), input rectifier bridge and heat dissipation (304), high frequency transformer (305), output rectifier diode assembly (306) and auxiliary power transformer (307), silicon carbide inverter assembly (301), rectifier radiator component (302), delay relay (303), input rectifier bridge and heat dissipation (304), high frequency transformer (305), output rectifier diode assembly (306) and auxiliary power transformer (307) are uniformly arranged in the upper end surface of the integrated circuit board (3).

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